Jack/Natty crashes on "Cannot create thread 1 Operation not permitted" error
beejunk at gmail.com
Mon Dec 13 16:43:56 GMT 2010
On Sun, Dec 12, 2010 at 8:05 PM, Ronan Jouchet <ronan at jouchet.fr> wrote:
> On 10-12-12 08:41 PM, Brian David wrote:
>> On Sun, Dec 12, 2010 at 4:10 PM, Ronan Jouchet<ronan at jouchet.fr> wrote:
>>> I can't run Jack under Natty, it refuses to start and raises a "Cannot
>>> create thread 1 Operation not permitted" error. Full log at
>>> Help welcome... maybe I just forgot something stupid, maybe this is a
>>> real issue.
>>> More info:
>>> Realtime setup done at installed time
>>> Realtime setup confirmed via the Ubustu Controls app (user in audio
>>> group, memlock, rtprio)
>>> Kernels tested: generic, lowlatency
>>> Tested under normal user account and with sudo
>>> Gear: Edirol FA-66 through a TI PCMCIA card that used to work
>>> flawlessly under Lucid and Maverick.
>>> Natty 20101212 x86
>>> Thanks for your help,
>> One issue I see right away is that you should not be using Ubuntu
>> Studio Controls to adjust the realtime settings. Unless things have
>> changed (perhaps they have), Ubuntu Studio Controls edits
>> /etc/security/limits.conf, which is the wrong file. The file you will
>> want to edit is /etc/security/limits.d/audio.conf. Because you've
>> used Ubuntu Studio Controls, there's a chance that you have settings
>> in both limits.conf and audio.conf, and this can definitely cause
>> Make sure only one of those files has the realtime settings. Hope that helps!
> Hi Brian,
> Indeed, both files exist and have different settings, I'm having a look
> at this.
> Also, adi from #ffado mentioned several points nedding investigation,
> I'll test them tomorrow and report here.
> Thanks for the hint!
> Ronan Jouchet
Just to clarify, you will want to remove only the realtime settings in
limits.conf, and not the entire file.
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